Limp mode, can't fix.

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Originally Posted by Covo71

On the highway in fith gear 2700rpm 15psi, pushing up hill takes it to 20psi. Only goes up to just over 400deg on a longer hill. I don't want to change it as it is all working.

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I take it yours is a manual, that would sound about right compared to my auto in the lower range.
Like you said its working so dont alter it, but whats your boost at 100kph is that 2700rpm and 15psi.

Sounds OK to me. I am running about 18-19psi max and it sits around 15 when I am cruising at 100 kph as well. My engine seems to like this set up the best. Any less boost and the egt's go up/performance drops. I have thought of dialling in more boost but I don't want to over do it.